 eliasPremium,VIP
join:2000-07-24
Miami, FL | Empty I would love to see non-data card traffic for AT&T vs. Verizon. It's like Verizon is saying "we have the best expressway" but nobody is really using it.
Another downside of their CDMA-based technology is that you can't do simultaneous voice and data. GSM-based 3G is capable of both.
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Voype | Telefónica (powered by Windows Live Call) |
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| said by elias:Another downside of their CDMA-based technology is that you can't do simultaneous voice and data. GSM-based 3G is capable of both. I have a Sprint Palm Pre and while talking on the phone I get alerts for rec'd emails and the web browser does auto screen refreshes for web sites using that feature. It seems to do both data and voice simultaneously on my CDMA phone.
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said by elias:I would love to see non-data card traffic for AT&T vs. Verizon. It's like Verizon is saying "we have the best expressway" but nobody is really using it. Another downside of their CDMA-based technology is that you can't do simultaneous voice and data. GSM-based 3G is capable of both. »/mspeed?domains=1 |
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eliasPremium,VIP
join:2000-07-24
Miami, FL | said by xenophon:said by elias:I would love to see non-data card traffic for AT&T vs. Verizon. It's like Verizon is saying "we have the best expressway" but nobody is really using it. Another downside of their CDMA-based technology is that you can't do simultaneous voice and data. GSM-based 3G is capable of both. » /mspeed?domains=1 Those are just speed tests, used by a small subset of the population. I'm talking about GB/TB per month/year for the entire network.
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Voype | Telefónica (powered by Windows Live Call) |
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eliasPremium,VIP
join:2000-07-24
Miami, FL | reply to fAcEtIOUs
said by fAcEtIOUs:said by elias:Another downside of their CDMA-based technology is that you can't do simultaneous voice and data. GSM-based 3G is capable of both. I have a Sprint Palm Pre and while talking on the phone I get alerts for rec'd emails and the web browser does auto screen refreshes for web sites using that feature. It seems to do both data and voice simultaneously on my CDMA phone. I've heard of VZW BlackBerry users that get a rash of e-mails once they hang-up a call because it can't do both.
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 Frankis chillingPremium
join:2000-11-03
somewhere
1 edit | reply to fAcEtIOUs
said by fAcEtIOUs:said by elias:Another downside of their CDMA-based technology is that you can't do simultaneous voice and data. GSM-based 3G is capable of both. I have a Sprint Palm Pre and while talking on the phone I get alerts for rec'd emails and the web browser does auto screen refreshes for web sites using that feature. It seems to do both data and voice simultaneously on my CDMA phone. that's probably because you have the wifi on 
neither cdma 1x or evdo can do data + voice at the same time. it is a limitation of the spec.
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At first I thought everyone on the highway was drunk but then I realized I was driving in Florida  |
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 The LimitPremium
join:2007-09-25
Greensboro, NC
kudos:2 | reply to elias
I can browse the web and talk on the phone at the same time...? |
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said by Frank:said by fAcEtIOUs:said by elias:Another downside of their CDMA-based technology is that you can't do simultaneous voice and data. GSM-based 3G is capable of both. I have a Sprint Palm Pre and while talking on the phone I get alerts for rec'd emails and the web browser does auto screen refreshes for web sites using that feature. It seems to do both data and voice simultaneously on my CDMA phone. that's probably because you have the wifi on neither cdma 1x or evdo can do data + voice at the same time. it is a limitation of the spec. Maybe. I'll try that out today after I turn the WiFi radio off.
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 N3OGHYo Soy Col. "Bat" GuanoPremium
join:2003-11-11
Philly burbs
kudos:1 | reply to elias
I wouldn't want my device to get e-mails while I was talking on it anyway.
I understand it's a CDMA limitation, but quite frankly, I like it.
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said by elias:Another downside of their CDMA-based technology is that you can't do simultaneous voice and data. GSM-based 3G is capable of both. 3G UMTS is CDMA based. |
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eliasPremium,VIP
join:2000-07-24
Miami, FL
1 edit | said by fifty nine:said by elias:Another downside of their CDMA-based technology is that you can't do simultaneous voice and data. GSM-based 3G is capable of both. 3G UMTS is CDMA based. Yes, but that's for the air interface only. The core networks are different from GSM vs. CDMA.
GSM uses: »en.wikipedia.org/wiki/Mobile_App···ion_Part
CDMA uses: »en.wikipedia.org/wiki/IS-41
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Voype | Telefónica (powered by Windows Live Call) |
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Actually CDMA is capable of voice and data at the same time once the channel card is available. It is up to the carriers to implement it with a channel card update expected out next year. This enhancement will also increase the voice capacity making CDMA extremely efficient in spectrum usage.
»cdg.org/news/press/2009/Aug17_09.asp |
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patcat88
join:2002-04-05
Jamaica, NY
kudos:1 | said by kem09030:Actually CDMA is capable of voice and data at the same time once the channel card is available. It is up to the carriers to implement it with a channel card update expected out next year. This enhancement will also increase the voice capacity making CDMA extremely efficient in spectrum usage. » cdg.org/news/press/2009/Aug17_09.asp A. Qualcomm hasn't announced chipset support
B. new phone needed
C. CDMA is dead, no more upgrade planned
D. CDMA has a history of dead and unadopted standards, EVDV? UMB? CDMA 2000 1xRTT Release A circa 2002 that was supposed to add simultaneous voice and data at 2G speeds? |
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 HallPremium,MVM
join:2000-04-28
Dayton, OH
kudos:1 | reply to Frank
said by Frank: neither cdma 1x or evdo can do data + voice at the same time. it is a limitation of the spec. I may not understand you correctly, but I can receive text messages (data) while talking (voice) on my smartphone (in EVDO mode). |
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eliasPremium,VIP
join:2000-07-24
Miami, FL | said by Hall:said by Frank: neither cdma 1x or evdo can do data + voice at the same time. it is a limitation of the spec. I may not understand you correctly, but I can receive text messages (data) while talking (voice) on my smartphone (in EVDO mode). SMS goes through the voice channel's signaling path.
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Voype | Telefónica (powered by Windows Live Call) |
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Thanks for the scoop but you didn't quite get what I was saying.
The CDMA bashers like to bash CDMA without understanding that 3G GSM is in fact CDMA based, and their supposedly "advanced" GSM standard used old TDMA techology prior to 3G.
Fact is that Verizon and Sprint were ahead of the curve when it came to what mattered most - reliability and seamless handoff between cell sites. And this was due to the way that CDMA works.
Imitation is the sincerest form of flattery. |
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1 edit | reply to Hall
Try to surf the net while talking.  |
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eliasPremium,VIP
join:2000-07-24
Miami, FL | reply to fifty nine
said by fifty nine:Fact is that Verizon and Sprint were ahead of the curve when it came to what mattered most - reliability and seamless handoff between cell sites. And this was due to the way that CDMA works. Bottom line is that they betted against the world standard and lost.
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Voype | Telefónica (powered by Windows Live Call) |
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| reply to elias
not true there is a upgrade to that that will be implomented by year end |
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